Introducing The Gpx-4500 - Minelab GPX-4500 Instruction Manual

Introducing
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the GPX-4500
The GPX-4500 utilises Minelab's proven 'Dual Voltage
Technology' (DVT). This ensures an accurate Ground
Balance to provide maximum sensitivity and depth
in all ground types.
The GPX-4500 offers a total of six Timing options,
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each incorporating the all-new SETA technology.
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Smart Electronic Timing Alignment (SETA) ensures
the detector is precisely aligned for each individual
Timing option. This improvement in calibration
reduces the susceptibility to certain types of
interference, and significantly improves
the detector's immunity to highly magnetic
rocks and soils.
Through a process of dynamic noise compensation,
SETA ensures that the threshold stability is improved
and maintained, allowing you to operate the GPX-
4500 with maximum efficiency under all conditions.
Dynamic
Noise
The GPX-4500 now offers six preprogrammed
Compensation
Search Modes, set up for the most common
search techniques.
All modes can be fine tuned by simply scrolling
through the various functions of the detector and
adjusting the settings.
With improved fuctionality and new timings the
GPX-4500 is capable of finding nuggets in a diverse
range of ground conditions with greater ease than
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previous detectors.
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Functions
Overview
Rx Gain
The Rx Gain function sets the overall
sensitivity level of your detector. In
areas where soil conditions are mild
you can increase the Rx Gain. In areas
that are more difficult Rx Gain can
be reduced.
Timings
The GPX-4500 features a number of
new timings, increasing performance in
different conditions.
Ground Balance (GB) Type
Ground Balance Type now has three
settings: Normal, Specific, and GB Off.
Normal is the preferred setting for most
soil types. Specific Ground Balance
is designed to be used in very hot
ground, and is especially useful with
Monoloop coils. GB Off switches the
ground balance circuit off for maximum
depth in very mild soils, sand etc.
Response
The Response function allows you
to invert the target response. Deep
targets can now sound like the more
familiar 'rising and falling' pitch of a
shallow target signal.
Motion
The speed at which you sweep the
coil has an effect on target response
time and Ground Balance adjustment.
Matching your preferred coil sweep
speed with the corresponding Motion
setting can reduce noise and improve
your ability to pick up targets at depth.
Custom Search Mode
With Custom selected, a range of new
custom search mode positions become
available from the LCD menu. A new
mode name picker is also included.
Create your own modes for different
locations and use them for future visits.
Stabilizer
This is a new feature which allows you
to fine tune your audio, to obtain the
best compromise between smooth
operation and clear target signals.
Target Volume
Used to control the built-in amplifier
which affects the volume of target
signals. It is active with both
headphones and an external speaker.
Target Volume can also be used to
reduce the severity of ground signals.
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